assertion  retraction  graph  subject          predicate        object                     datatype    annotation
1          0           graph  obo:CHEBI_27207  rdfs:label       univalent carboacyl group  xsd:string  
1          0           graph  obo:CHEBI_27207  oio:id           CHEBI:27207                xsd:string  
1          0           graph  obo:CHEBI_27207  rdfs:subClassOf  obo:CHEBI_37838            _IRI        
1          0           graph  obo:CHEBI_27207  rdf:type         owl:Class                  _IRI